Print and television ads for the wrinkle-smoothing drug Botox are misleading and should be pulled until they are changed, the U.S. Food and Drug Administration told the drug's maker Allergan Inc.

Question: Why does the price of BOTOX® vary so much? Answer: BOTOX® needs to be dissolved with saline in order for it to be used. If too much saline is used for dilution, then prices for BOTOX® may be ...